Clipper blade control



Jan. 24, 1933. L. J. WAHL CLIPPER BLADE CONTROL Filed June 22. 1931 ll Jfz uenl or j l oJZMgZLZ Patented Jan. 24, 1933 UNITED STATESPATENTI'ISVOFFICEIY LEO 'J'. WAHL, OF STERLING, ILLINOIS, ASSIGNOR TOWAHL CLIPPER'GOR-PORATION, OF

STERLING, ILLINOIS, A CORPORATION OF ILLINOIS CLIPPER BLADE commonApplication filed June 22,

My invention relates to clippers and has for its principal object theprovision of means for controlling the relative positions of the comb,the cutter, and the clipper frame whereby to improve the flexibility ofthe clipper with respect to the adjustments for varying the closeness ofcut by the clipper.

In using clippers, barbers are faced with the problem of evening out thechanges in length of the hair between that cut with a fine or closecutting clipper and that cut with a coarse clipper, as well as thechange from the clipper to the shears. Various means have been adoptedto make a single clipper operate to out both fine and coarse andgradually change from one to the other, and it is with this line'ofdevelopment that my invention particularly concerns itself. A

One purpose of the invention is to provide a novel means of varying therelative relation of comb and cutter to change the closeness with whichthe clipper will cut the hair.

It is also a purpose of this invention to provide a novel operatingdevice for adjusting the comb and cutter of a clipper which makes itpossible to readily adjust the length of cut of the clipper withoutloosening or changing the hand grip thereon.

Another and more specific object of the invention is to rovide a novelmounting whereby the com is mounted to swing with respect to the'frame,and the cutter blade is so mounted as to follow the angular position ofthe comb with respect to the frame without seriously changin the normalpressure between the cutter an comb.

Other and more specific objects of the invention will appear as thedescription proceeds in connection with the accompanylng drawing whereinthe preferred form of the invention is shown.

In the drawing- 1 I V Fig. 1 is a side view of a clipper embodying myinvention;

Fig. 2 is a top view of the clipper showingv the relative position ofthe operating means;

Fig. 3 is a longitudinal section of a portion 1 of the clipper;

Fig. 4 is a section substantially on the line 4-4 of Fig. 3; and

1931. Serial No. 545,964.

is of the electromagnetic typ'e'having an armature 9 and anelectromagnet 10 of aiwell known type by means of which the armature l9is vibrated to move the cutter blade by. means of the connecting element11.

construction is such that armature 9 and element 11 .yieldingly pressthe-comb and cutter together. This, however, is a well knownconstruction in this art'and may be of any.

suitable type desired. 7 My invention concerns itself particularly withthe relation between the comb 7 the. cutter 8, and their mounting uponthe frame 6 together with the means whereby they mayv be adjusted.

' Inthe form shown in Figs. 1 to 4which is the preferred form, the combis mounted upon a U-shaped member 12, theupstanding legs 13 and 14 ofwhich are pivoted as by partly in sectionof a i 7 now indetailt o thedrawing,

The

means of the screws 15 and 16 to the frame Suitable set screws such asindicated at 17 serve to lock thescrews 15 and 16 in position so thatthey mayserve as pivots on which the U-shaped members 12 can swing.

shown, the cutter blade 8 isslotted at 18 to receive the rounded end ofthe member, 11 so that this cutter blade canswing around this roundedend and thus follow the'angular position of the comb 7 when it is beingadjusted. Comb 7, however, moves about'a" much longer radius than thecutter 8 so that in changing their positions from that shown in Fig. 1,forexample, to that shown in Fig. 3, a relative sliding movement will becaused between them to advance the comb'teeth beyond those'of thecutter. Naturally there'is some change in the position of the cutterwith yieldingpressure between these two elements respect to its drivingmember "11, butv the i permitsof this'small change without making anyappreciable change in the pressure 'be-' tween the comb and cutter.-

I find, however, one thing to behighly advantageous in this regard, andthat isthat the pivot point for the U-shaped member is placedsubstantially on a line. running perpendicular to the center of theopening 18 when the cutter 8 is in substantially the cen-, tral positionof its movement, and in this why the changes in angular position of thecomb t and cutter make the least changes in the pressure therebetween.

1- From the above description, it is believed to be clear that bychanging the angular position of the comb and cutter with respect to theframe one of them may be madeto slide relative to the other and thus,vary the coarseness of the cut on account of'the shape vo the- 291mb adeus d wh ch inc e se fa y rapidly in thickness from the comb points thist-d he bac e d s me G ahse h an ula pos -ion o the comb and cutter withrespect to the I have devised a means which is simple andiefi'eetiveforoperating without the necesoflooseningthe grip upon the clipper.

7 1 "Ihis means consists of the thumb; piece 19 V whieh as shown has a.portion 20 extending a r s. t ten f a c ipp r ram an whi .issecured by,-means of the screw 15to the lug 1 t t Ih r ber 12-4 d en 1 2 serves oPreven r e angu a mwement etween th humb P e e 9 d th leg 13 so thatthey must move in unison. V

7 It isbelieved to be obvious that with the hand grasping the frame 6thev usual manner holding these clippers thumb piece 19' her ad ly pr se e eva ed. i h the 7 thumb without the necessity of releasing the gr pup t lipp In Fig.

with tlie" exception of its tlfihSYerse movemer t.

r n order e operate thistype of adjustable omb, member- 19 fits in. aslot 22 in the comb by means of the extension 23 thereof.

- With thistype of construction, it is necessary,

as indicated atf24; in Fig. 4: and thus preof course, thatthe'cutterblade 8,01 8" be cut 7 away back of the teeth to the narrow'width ventany. possibility of the cutter-itself strik- 'inglegs. l3- and; 14 orthe extension 23.

, -From the above description, it is believed 1 that the. constructionand advantages of this 1 device, will be clearto those skilled in thisart. It is, also believed, to be obvious, that various. modificationsmay be made without departing fromfihe scopeof invention as .v my invention, whatl claim as new and desire to secure by Letters Patent isInccmb natioh,a l ppe t -mea I 6- n' 1,e a ns swingingly mounting said,comb. on

here n. et forthi Having thus descr ibed onespecific form. of

said frame, a'cutter blade interposed between .v i 3 Q -m$mber 9- as Iadapted: t a ligh y fi r t con ru t in which the comb. 7 T- is. slidablewith respect o he rame 6? st a f vi h le, n in which cutter 8, ofcourse, remains fixed the comb and the frame, and driving means" forsaid blade mounting said blade for angular movement with respect to theframe so that the blade and. comb are both angularly movable withrespect to the frame, the radius on; whichthe comb swings being ma-.terially greater than the radius on which the cutter swings.

2. In combinatioma clipper,-fren1e-,a:0mb,

means. swingingly mounting said comb on said frame, a cutter bladeinterposed between the comb-and the frame,'and driving means for saidblade mounting said blade for an- "gular movement with respect to theframe so hat the bla nd com a e oth. an

larly movable with respect t0v the frame, the a ius On Gh the coihbswings b ng ma.-

terially greater than theradiuSO l. Which th c'u r's ss, aid first.named means e: ing pivoted on the forward end of} said fra-rriejand'having an operating portion projecting Q l' th' ati 0 th immey I .7

3, In combinations a clipper frame, acomb mounted thereon for angular;movement relaq tive to. said frame, a cutter. blade bearingon said combvand-reciprocable to and fro thereon, a ri ng mean v fo a d cut er bladupon which said blade is 'anguljarly movable ih r e to low the' ombi,mean fbrm v-,,

ing t om an c er l de to cha g heir ang l ation, oii'th ram the mountingof the; comb causing itl to move far her endw se for gi ang lar disp ae- 11219111; han at G itt r blade whereby to cause; relative Sliding Q.II .e I/lh betw en the comband u te la i 4.111 a hair clipper a clipperframe, a omb. liloun ed the e n f r gular mo m a relative, to said frae'a cutter b a e 7.

a ng n e mbancl re iprocab ie oan f t eon,.. nd me ns. mountin id l terblade for angularmovement -relative to mean p rota y nihnn ins. a zmb nsaid I frame, acutter blade Cooperating with said comb and reciprocableto, and fro thereon, a d mean pirQtally; m nt ngsaid. a e with respecttosaid frame, thef-pivotal'axis of the blade being between the comb-andthe piv laxis f t mb, 6. In a clipper, a'clippe'r'frame acomb,

Y means, p v elly mounting said comb on said fram ,v acu te f blade.cboneratingw t s id comb and reciprocable toffa-ndfro, thereon,

and driving means forsaid blade-providing a p vo a m u tins heref rtween the comband its pivotalaxis. I j

7. In aclipper, a clipper frame, a comb,

means pivotally mounting said comb on said frame, a cutter bladecooperating with said comb and reciprocable to and fro thereon, anddriving means for said blade providing a pivotal mounting thereforbetween the comb and its pivotal axis,- the pivotal axis of the bladeand comb being substantially on a line perpendicular to the blade whenthe blade is in the central position of its movement.

In witness whereof, I hereunto subscribe my name this 12th day of June,A. D. 1931.

LEO J. WAHL.

